One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,8)(4,6)(5,7)(9,10,12,14)(11,15,16,13)(18,24)(20,25)(27,32)(28,31)(1,3,5,4)(2,6,7,8)(17,18)(19,28)(20,30)(21,27)(22,24)(23,32)(25,26)(29,31)(9,11,12,16)(10,13,14,15)(17,19,22,29)(18,25,24,20)(21,26,23,30)(27,31,32,28)(1,4,5,3)(2,6,7,8)(17,20)(18,26)(19,27)(21,31)(22,25)(23,28)(24,30)(29,32)(17,21)(19,26)(22,23)(27,32)(28,31)(29,30) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.